/*
 ***************************************************************************************
 *  Copyright (C) 2006 EsperTech, Inc. All rights reserved.                            *
 *  http://www.espertech.com/esper                                                     *
 *  http://www.espertech.com                                                           *
 *  ---------------------------------------------------------------------------------- *
 *  The software in this package is published under the terms of the GPL license       *
 *  a copy of which has been included with this distribution in the license.txt file.  *
 ***************************************************************************************
 */
package com.espertech.esper.example.transaction;

import com.espertech.esper.common.client.EventBean;
import com.espertech.esper.runtime.client.EPRuntime;
import com.espertech.esper.runtime.client.EPStatement;
import com.espertech.esper.runtime.client.UpdateListener;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class RealtimeSummaryGroupListener implements UpdateListener {
    private String groupIdentifier;

    public RealtimeSummaryGroupListener(String groupIdentifier) {
        this.groupIdentifier = groupIdentifier;
    }

    public void update(EventBean[] newEvents, EventBean[] oldEvents, EPStatement statement, EPRuntime runtime) {
        if (newEvents == null) {
            // we don't care about events leaving the window (old events)
            return;
        }

        EventBean theEvent = newEvents[0];
        log.debug(
            groupIdentifier + "=" + theEvent.get(groupIdentifier) +
                " minAC=" + theEvent.get("minLatency") +
                " maxAC=" + theEvent.get("maxLatency") +
                " avgAC=" + theEvent.get("avgLatency")
        );
    }

    private static final Logger log = LoggerFactory.getLogger(RealtimeSummaryGroupListener.class);
}
